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. 2021 Jul 1;6(6):1561–1570. doi: 10.1093/jalm/jfab072

Table 2.

Clinical and confirmed respiratory viral infections among prepandemic samples.

Recent acute illness Days prior to sample collection Males Females Total
None NA 370 330 700
URI
1–14 days 15 10 25
15–31 days 9 16 25
Bacterial pneumonia
1–14 days 7 3 10
15–31 days 5 5 10
Unspecified pneumonia
1–14 days 7 3 10
15–31 days 7 3 10
Viral pneumonia
1–14 days 3 2 5
15–31 days 4 2 6
Confirmed viral respiratory infectiona NA 15 16 31
With any recent acute illness 72 60 132
Grand total 442 390 832
a

Includes Parainfluenza antigen positive (n = 13), Metapneumovirus antigen (9), influenza A/B antigen (8), Influenza A PCR (3), Influenza B PCR (1), RSV antigen (5), RSV PCR (1), Adenovirus antigen (3), Herpes Simplex I (DFA). Total number add up to more than 31 as some individuals recorded >1 positive result.

NA Not available or applicable.